![]() 4K is also known as Ultra High Definition, or UHD. Because of the number of pixels, 4K technology is typically only available on larger displays that are at least 32 inches in size. This provides a vivid viewing experience. 4K TVs have at least 4,000 pixels along their horizontal axis and are backlit by an LED. The type of TV called a 4K TV generally has a better resolution than the typical high-definition display. This resolution is necessary to receive and display high-definition channels properly. To be classified as an HDTV, the TV must be able to display images in at least a 1280 by 720 screen resolution. Many televisions on the market contain high-definition television, or HDTV, technology. LED TVs may use high dynamic range, or HDR, technology, which allows the LEDs to display at a high level of contrast, creating a lifelike picture These LEDs decrease the weight of the television and improve its reliability.
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